KENNESAW, Ga. (AP) -- Police in Georgia have identified the gunman who shot six people at a FedEx package-sorting center before taking his own life.

The Cobb County Police Department says in a news release that the gunman was 19-year-old Geddy L. Kramer of Acworth.

The news release says Kramer drove up to a guard shack and shot the security guard inside, then went in and shot five more people.

Three of the victims were critically wounded, though only one remained in critical condition by Tuesday afternoon. Police say three were in stable condition, and two others were treated and released.

Associated Press News ReleaseApril 29, 2014 - 10:45am

KENNESAW, Ga. (AP) -- A witness says a gunman who opened fire at a FedEx center outside Atlanta was armed with an assault rifle, a knife and had bullets strapped across his chest "like Rambo."

FedEx clerk Liza Aiken said she looked up and saw the man before he opened fire inside the package-sorting station Tuesday morning. She was talking to a reporter outside when a woman in a FedEx jacket told her to stop and led her away.

Cobb County police say six people were wounded in the shootings and the gunman was found dead from a gunshot wound that appeared to be self-inflicted.

Associated Press News ReleaseApril 29, 2014 - 10:30am

KENNESAW, Ga. (AP) -- A shooter described as being armed with an assault rifle and having bullets strapped across his chest "like Rambo" opened fire Tuesday morning at a FedEx station outside Atlanta, wounding at least six people before police found the suspect dead from an apparent self-inflicted gunshot.

Police rushed to the center after someone called to report an active shooter at 5:54 a.m. After surrounding the perimeter and working to clear the building, officers found the suspect dead, Cobb County police spokesman Michael Bowman said. He said there were no immediate reports anyone else had been killed.

FedEx clerk Liza Aiken said she was working inside when she heard something, dropped, looked to her left and saw the gunman.

"He had bullets strapped across his chest like Rambo, a huge assault rifle and he had a knife," Aiken said in a parking lot where employees were gathering not far from their workplace. Before she could continue, a woman wearing a FedEx jacket told Aiken to stop talking and led her away.

Six people wounded at the FedEx station were taken to nearby Wellstar Kennestone hospital, where spokesman Tyler Pearson said one victim was rushed to surgery with potentially critical injuries. Others were less serious.

"A lot of them were able to walk off the ambulance," Pearson said.

David Titus, a FedEx truck driver, said he was just coming to work when he saw someone walk up and shoot a security guard in the abdomen outside the building. He said he could hear more gunshots after the gunman went inside.

"It was chaos," Titus said. "Everyone was running ducking and hiding, trying to get out of there."

FedEx said the facility about 25 miles north of Atlanta is a hub where packages are sorted and loaded onto vehicles for delivery. It's located next to the general aviation airport for suburban Cobb County.

The identity of the suspected shooter was not immediately released.

The company was cooperating with police but had no details to release about the shootings Tuesday morning.

"We are aware from the authorities of the situation," said Scott Fiedler, a FedEx spokesman. "Our primary concern is the safety and wellbeing of our team members, first responders and others affected."

CBS Atlanta Web CopyApril 29, 2014 - 8:30am

Atlanta, GA - At least six people were taken to a hospital after a shooting at a FedEx warehouse in Cobb County on Tuesday.

Police were called at 5:54 a.m. about a shooting at a warehouse located on Grist Lake Road in Kennesaw.

Hundreds of officers from different agencies responded to the scene.

The building was evacuated and police are still searching for a shooter inside the building. The building will not reopen for the day.

WellStar Kennestone Hospital officials said they have six patients and are expecting more.

Their conditions range from minor to those in surgery.

Roads around the building have been shut down.

FedEx released the following statement:

"FedEx is aware of the situation. Our primary concern is the safety and wellbeing of our team members, first responders and others affected. FedEx is cooperating with authorities."

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